Patent US3451004A successfully refreshed from Google Patents.
US3095461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of 1-alkenes
Assignee: California Research LLC
•
Filing: 1961-01-05
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Granted: 1963-06-25
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Expires: 1981-01-05
Abstract
No abstract record available.
Inventors
- 👤 John B Wilkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:17
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; B; B01; B01J; B01J23/00; B01J23/02; C07C2/24; B01J23/90; C07C2521/00; C07C2521/06; C07C2521/08; C07C2521/14; C07C2521/16; C07C2523/00; C07C2523/02; C07C2523/04; C07C2531/00; C07C2531/02; C07C2531/12; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR THE HOMO- AND HETEROPOLYMERIZATION OF LOWER 1-ALKENES WHICH COMPRISES CONTACTING A 1-ALKENE FEED CONTANING LESS THAN SIX CARBON ATOMS WITH A CATALYST WHICH COMPRISES AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, RUBIDIUM, AND CESIUM SUPPORTED UPON A CRYSTALLINE POROUS MATERIAL SELECTED FROM THE CLASS CONSISTING OF ALKALI AND ALKALINE EARTH METAL SILICATES, EFFECTING SAID CONTACT AT A TEMPERATURE BETWEEN ABOUT 150* F. TO 400*F. AND RECOVERING A COMPOUNDED 1-ALKENE HAVING FROM FIVE TO TWELVE CARBON ATOMS.
Claim 2
Dependent Claim
82 words
A PROCESS FOR THE HOMO- AND HETEROPOLYMERIZATION OF LOWER 1-ALKENES WHICH COMPRISES CONTACTING A 1-ALKENE FEED CONTANING LESS THAN SIX CARBON ATOMS WITH A CATALYST WHICH COMPRISES AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, RUBIDIUM, AND CESIUM SUPPORTED UPON A CRYSTALLINE POROUS MATERIAL SELECTED FROM THE CLASS CONSISTING OF ALKALI AND ALKALINE EARTH METAL SILICATES, EFFECTING SAID CONTACT AT A TEMPERATURE BETWEEN ABOUT 150* F. TO 400*F. AND RECOVERING A COMPOUNDED 1-ALKENE HAVING FROM FIVE TO TWELVE CARBON ATOMS.
References Cited (Backward Citations)
US2466694A
Cited
US2986588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |